body{
    margin:0;
}

h1,h2,h3,h4,h5,h6{
    margin: 0;
    padding: 0;
}

ul{
    padding: 0;
    margin: 0;
    list-style: none;
}
.icon{
      width:1em; height: 1em;
      vertical-align: -0.15em;
      fill:currentColor;
      overflow:hidden;
}
html,
body,
#app,
.common-layout,
.el-container {
    height: 100%;
}